Improvement in glass-tools



UNITED ISTATEs PATENT 1: Fria.,

JOHN LAMONT, OF eLAsoow, NORTH BinTAiN.

IMPROVEMENT IN C-iLASS-TOAOLIS.l

Specification forming part of Letters Patent No. 183,267, dated October 17, 1876; application led May 29, 1876.

' To all whom it may concern:

Be it known that I, JOHN LAMONT, of Glasgow, in the county of Lanark, North Britain, merchant, have invented Improvements in Bottles and other Vessels for Aerated or Gaseous Liquids, and an improved tool for manufacturing such bottles, (English patent dated 2d. Julie, 1874,) of which the following l is a specification:

vention consists inla special construction,-

hereinafter described, ot' a spring hand-tool, composed of an expanding plug or mandrel made in two or more sectional parts, and inserted and pressed out by the same action of the hand instrument which forms or compresses the strengthening outer rim when finishing thel neck ofthe bottles, while the glass or other material is soft or pliable.

To make my invention better understood I will proceed to describe the same by reference to the accompanying drawing, in which- Figures 1 and 2 are, respectively, a side elevation and end view of the improved spring hand-tool for forming the new bearing-rim in the inside ot the neck or mouth and outer strengthening-head ofthe bottle, showing the parts of the tool all in their normal position. Fig. 3 is a side elevation of the said spring hand-tool shown in Fig. 1, and corresponding thereto, but with the spring-arms as pressed in by the hand ot' the operatoi-.at the middle part, where they are rounded to receive the hand, and the parts ot' the plug or mandrel for forming the rimas pressed out, all as in the act of forming the throat or mouth of a bottle in accordance with my said improvements. Fig. 4 is a longitudinal edge section.A takenon the line 1 1 in Fig. 1, and at right angles thereto, of this improved tool for forming the head and new rim within the neck of aerated or other liquid bottles in accordance with my said improvements.

The nature, novelty, and mode of performing my said invention consist, first, in forming the internal neck or mouth 1 1 of the bottle 2 (or other vessel) with a new bearing narrow annular flange or rim, A, near the outer end 1, (shown in Fig. 3,) and having the neck part l lwithin Wider than the mouth 1, and Widening slightly or gradually toward the inside 2 or, when desired, this bearing-rim A might be of a beveled, curved, or.other equivalent ridge or groove form for, the said closing rim A. Against the prominent parts ot' these rims A an elastic or tlexible part or washer, B, of a stopper, B G, lsuch as that shown in Fig. 5, is pressed when in the position of stoppering the vessel; and, as shown in Figs. 1 to 4, and particularly in Fig. 3. this rim part A may be formed by an expanding plug or mandrel made in two.(or it might be more) sectional parts, a a, formed or fixed on the end of two springs, a a', attached at a" to the central spindle b of thehand-toolc to d, with an end disk. b', which rests on and forms the end face of the neck or mouth 1 of the bottle 2, the main holding double spring-lever part c c being attached to the outer free screw end of the central spindle by by the two screw-nuts b, the free ends of these spring-arins c having fixed on each thel curved segmental matrix or block c', for forming the outer thick part or head 1ll of the bottle 2 at cclose to thedisk b', the said pressing in of the spring-arms c cX pressing out the two parts a c of the mandrel a a by the studs a, riveted to their spring-Steins a c', which are guided in theslots b2 ot' the disk b', all as shown in Fig. 3, the act ot' forming a bottle-head so that the neck parts a2 a2 form the round narrow mouth 1, and the shoulder part a3 a3 forming the bearing-rim part A by turning the hand instrument a to d, or the bottle, while the mouth or neck of the bottle is hot and ductile when made of glass, and when made of earthenware the mouth is so formed while the material is soft or plastic, the cross-pin d' forminga guide for the moving arms c and c.

What I claim is- 1. In a spring hand-tool taneously the outer and inner parts of necks of bottles, the combination of the self-openfor forming siniul ing Outer formers, the self-closing inner formers, and the pnshingstuds a a, each projecting through Oneyof the stops Or supports Of the inner formers and. `through the central spindle Or barb, and both acting when the apparatus is compressed in the hand to abut against its Opposite spring a', substantially as and for the purpose set forth. l

2. The combination, in a handtool for form- 

